Manufacture of pneumatic tires.



F. H. MERCER & H. F. HfBLEASE.

MANUFACTURE OF PNEUMATIC TIRES.

' APPLICATION man wry! 20. 1911.

1,276,942. Patentedlug. 27, 1918 4 SHEETS-SHEET 1;

M W J? 9 w ad 2 W F. H. MERCER & H. F. H. BLEASE.

MANUFACTURE OF PNEUMATIC T |RES APPLICATION- min was 20.19n.

I 1,276,942. Patented Aug. 27, 1918.

- 4 SNEET5-$HEET 2.

F. H. MERCER 61 H. F. H. BLEASE.

MANUFACTURE OF PNEUMATIC TIRES.

APPLICATION FILED JUNEZO, I917- 1,276,9&2. Patented Aug. 27,1918.

Q SHEETS-SHEET 3.

F. H. MERCER & H. F. H. BLEASE.

MANUFACTURE OF PNEUMATIC TIRES. APPLICATION mu) JUNE 20. 1911.

Patented Aug. 27, 1918.

4 SHEETS-SHEET 4- INVEMToqJ;

-Be it known that we, 'Fmxx UNITED STATES PATENT OFFICE.

FRANK HOLT MERCER AND HERBERT FREDERICK HASSALL BLEASE, OF'MELKSHAI,

ENGLAND.

MANUFACTURE OF PNEUMATlC TIRES.

Specification of Letters Patent; Patented Aug. 27, 19-18.

Appltcetion filed June 20, 1917. Serial No. 175,859.-

To all whom it may concern: 7

Hour Men- 011a, mechanical en ineer, and Hemmer Fannnmcn' HASSALL LEASE, mechanical enineer, both subjects of the King of Great ritain and Ireland, and residents of Melksham, \Viltshii'e, En land. have inycnted certain new and pse n1 Improvements in or Relating to the Manufacture of Pneie matic Tires, of which the following is a specifica'tion.

It is usual to tires of plies or lgycrsof canra fabriccoated 'ilh lil lbbclf and st a coreloz'. forming ring;

This. invention relates to an improved make covers for pneumatic rj similar meansffor shnpin' the fabric in the mechanicai prod ctibn 0 the covers f et-pneumatic hear-against lthetabric onthe' fg a fe g to. the accompany b l lugs-:5 A t ed .a main shaft 7: adapted to be driven by a pulley 1-. lu the shaft 71' is mounted toothed speed gear wheels (I r: f adapted to mesh with gear wheels /L on the cr'mntersha ft k. (in the shaft is a pinion m adapted to dri 'rthe. toothed wheel 11- keyed to the shaft :1. Milli -shaft, n We two disks J 7) free to slide th reon, hut adapted to lie rotated lherew'il h On the shaft .7; is asleeve 32 carrying brackets {13, 3:1 and a quadrant 35.

, The shaft: 0 is supported on bearings 36 and on ai'insflli and Ill andtou bearings 36". The hearings 3G and lli" are constrained by and move in seguu-utal slots 356 ()n the ining a is mounted a worm 37 gearing with the qllmll'nlii nuil operated lrv a handle PM for the purpose of moving the shaft 0 in lciigrrying a can A lhan'dle 47 on 1th" -fon moving the cam "d1 sk core is rotated.

40 in which are] the disk-S 7); Each disk isprm" and "sleei'esll. Betweeneiichdisk' aiidfthe wall of the casing is a,-:sp"n' adapted/to force; the. disks-Q ,h,btliei', ,lfthei amount of moi c'inen n 'li'niitedhy the (0 bosses 41,41, touc in leajc other. On thlei 44;fadapted to bear the core against the fabric p \vhicltthe tire is d Between the dis ea'n he Zion-ed. apa theysprings 43. 43;

posit ion to kee In'operatiou tl 33;, 4 ing the disks p p o| 1 ",\\hiel ithe' rollers Min-0*" mounted are moved by the hand operated worm and qlmdrant 37 and 35 to a position so as to he the desired distance from the center of the core, this position may be determined by means of a brass plate fixed on side of machine and marked in a suitable manner for'same. By throwing the cam free the rolleis will now hear ou-the sides of th, core. The canvas isthen pressed on the cgre which is slowly rotated. the disks are. then set in motion, the rollers n-essing 1'm the ran \'as. the disks preferably rotating in the opposite sense to that. in which the ()u the frame 0 of the. machine are moltntced'tiwo drums 40, 50 on square shafts.

and molded on to the core. The strip of plain material is wound on to the drum 49 as the coated canvas is drawn off.

The top cover 51 of the frame a is formed with a guide 52 on which is mounted aslide 53 having a bracket 54 on which is disposed a spring-pressed shank 55 carrying three rollers, 56, 57 and 58 adapted to bear on the crown of the tire being molded.

What we claim as our invention, and desire to secure by Letters Patent, is:-

1. In a machine for molding tire covers on a core adapted to be rotated, brackets pivotall mounted on the machine, a shaft mounte in said brackets, two disks on said shaft free to slide thereon but adapted to be rotated therewith, rollers on said disks ada ted-to bear against the fabric placed on t e core.

2. In a machine provided with disks mounted on a shaft on pivoted brackets as claimed in claim 1, "a casing adapted to protect the disks formed on an extension of,

.one of said brackets, a spring between each v disk and the wall of the casing, said springs 25 being adapted to force the disks toward each other.

3. In a machine provided with disks mounted on. a shaft on pivoted brackets as claimed in claim 1, means for moving the 30 signed our names in the presence of two 35 subscribing witnesses.

FRANK HOLT MERCER HERBERT FREDERIQK HASSALL BLEASE.

Witnesses:

ARTHUR CARRICK, Gnome Bacon Ems. 

